On Sun, 16 Jun 2019 22:54:28 -0400, Paul wrote:

My $20 power supply is OK with a 12v motherboard. I'll match the K7S5A
with a better power supply.

And that's the cross-loading effect.

Balancing the loads leads to closer-to-correct
regulation.

I understand volts and amps, but your EE talk is over my head. That's
OK, I never wanted to be an EE. I'm just a mechanic swapping parts. And
now my $20 power supply has a good home. So thanks for the ideas.